Transmission-gear.



/ I w. KELLY.

TRANSMISSION GEAR. APPLIGATION FILED MAR. 4, 1911 1,039,956. Patented0ct.1, 1912.

. Niinrasrs OFFICE.

WILLIAM KELLY, 01? DETROIT, MICHIGAN.

TRANSMISSION-GEAR.

Leas es.

fipecification of Letters Patent.

Patented Oct. 1,1912.-

Application filed March 4, 1911. Serial No. 612,176...

clare the following to be a full, clear, and

exact description of the same, such as will enable others skilled in theart to which it pertains to make and use the same, reference belng hadto the accompanying drawings, which form a part of this specification.

My invention relates to-transmission gear for automobiles, and myimprovements have for one object to provide an improved mechanismbywhich the clutching apparatus is operated.

In the accompanying drawing Figure l is an elevation mostly, in section,of an apparatus embodying my invention. Fig. 2, is an elevation, partlybroken away, of a modified form of embodiment of my invention.

A is the motor shaft and B is a fly wheel thereon. I

C is a casing formed at one end to fit upon the eXtended'end A, of theshaft A, so as to turn, and slide longitudinally, relative to the same.

D is a screw-threaded bolt, its threads engaging internalthreads in thewall of an aperture extending into the end of the por tion A ofv theshaft, A, coaxial therewith.

E is 'a cone uponthe shank of the bolt D and bearing against the head ofthe same.

F is a cap having its outer edge formed into an annular flange. Y

The cone and cap F, with the, balls which are between them, form athrust bearing.

G is a helical spring having one of its ends bearing against the flangeon the cap F,-

and its other and bearing against the end of the casing. i

H is a. clutch upon the casing C, adapted to engage against-aclutclisurface b'on the fiy-, -wheel I Theaetion of the spring G is toforce the casing C toward the left as shown in the figures, and causethe clutch H to engage the surface 7) on the flywheel B, so as to securethe casing C to the shaft A.

Nis a transmission-shaft extending into the casing C from ts end and.engaging by a universal joint construction, I, w1th sa d casing. Saiduniversal joint. construction consists of longitudinal slots in theinterior of the walls of the casing C and a cross head a 11. extendinginto said slots so as to engage the side walls thereof and having curvedouter ends as shown in the drawings Fig. 2. The rod N is pivoted to thecross head n n at N J is a sleeve surrounding the shaft N where itenters the casing C, and provided with an enlargement 7' at its innerend in the form of an outwardlyextending annular flange. 7

P is a cap surrounding the sleeve J, extending over and engaging theflange j. and securely bolted to the casing C, by bolts engaging thesame near 'the outeredge of said sleeve outside of the flange 3'.

Q Q; are radially extending conduits, coinmunicating with the interiorof the casing C, and with the outer surface of the flange 7a is a ringupon the outer edge of the sleeve J.

K is a link pivoted at R- to the ring is.

L is a lever pivoted upon a stationary shaft S, and pivotally(.DIIHQC'EQCl to thelink K at M.

It will be observed that the casing C is hollow and contains the wearingsurfaces of the universal joint 7. and its interior is connected byoutwardlyextending conduits Q with the wearing surface of the sleeve J.

In the modification shown in Fig. 2. the

flange 17' is made with a surface shaped to a portion of the surface ofa sphere. and the to it. This forms aball and socket joint and permitsof an angular movement of the shaft N with relation to the casing C,

I when the sleeve J fits tight upon t-heshaft N.

By manipulating the lever L, the casing may be drawn toward the right asslibwn in the figures, thus disengaging the clutch H from the fly-wheel.

In practice the casing C is filled with fluid lubricating materialthroughan opening 0 provided for the purpose. which keeps the' joint Ilubricated and thelubricant is impelled by centrifugal force through the)assages Q, to the contracting surfaces between the sleeve and the cap Por other portion of the casing.

In this construction the Wearing parts are inclosed, and provision ismade for keeping them continually lubricated.

part; of the casing C engaging this is shaped said parts and .rotativelyengaging therein 1 to prevent relative longitudinal move an at of saidthird part and the part. with which it engages, means for reciprocatingsaid. third part to engage or disengage the other two parts and conduitsfor lubricating material communicating with said reservo-i r and withthe third part.

Two rotary parts engaging surface of said i adapted to engage whenforced toward each other, and to disengage when separated, one of saidparts being adapted to form a reservior for lubrieating oil, a thirdpart provided with an ei'ilarged end extending into one of said partsand rotatively engaging therein, so as to prevent relative longitudinalmovement of said third'part and the part with which it engages, saidenlarged end being provided with outwardly extending conduitscoininunicating with said reservoir and with the engaging surface ofsaid third part/- and means for reciprocating said third part to engageand disengage said two parts.

14:. Two rotary parts adapted to engage when forced toward each other,and to dis engage when separated, a shaft extending into one'of saidparts, a universal joint engage when separated, a third part extendjoining said shaft to said part, a sleeve surrounding said shaft androtatively engaging in said part, so asto prevent relative longitudinalmovement of said third part and the part with which it engages, andmeans for reciprocating said third part to engage or disengage said twoparts.

5. Two rotary parts adapted to engage when forced toward each other,andto disengage when separated, one of said parts being adapted to forma reservoir for the lubricating oil, a shaft extending into one of saidparts, a universal joint joining said shaft to said part, a sleevesurrounding said shaft and provided with an enlarged end rotativelyengaging in one of said parts, so as to prevent. relative longitudinalmove ment of said third part and the part with which it engages, and anoutwardly extend ing conduitcommunicating with the interior'of saidreservoir, and with the engaging surfaces of said part and said sleeve,and means for reciprocating said sleeve.

'6. Two rotary-parts adapted to engage when forced toward each other,and to disengage when separated, a shaft extending intoone of said partsand engaging therein in a universal joint, a sleeve surrounding saidshaft and provided with an enlarged end, engaging in one of said partsin a ball and socket joint, and an outwardly extend ingconduitcommunicating with the inte rior of one of sa'id'parts and withthe en gaging surfaces. of said sleeve and the part with which itengages and means for reciprocating said sleeve.

In testimony whereof, I sign this specification in the presence of twowitnesses.

WILLIAM KELLY.

, Witnesses:

VIRGINIA C. SPRATT, ELLIOTT J. SToDnAnD.

